feat: 更新.env.example

Author: KeQianWang

.env.example

@@ -5,9 +5,9 @@
 # 模型配置 (Model Configuration)
 # ===========================================
 OLLAMA_BASE_URL=http://ollama:11434
-CHAT_MODEL_NAME=qwen2.5:latest
-EMBEDDING_MODEL_NAME=qwen2.5:latest
-MODEL_TEMPERATURE=0.3
+CHAT_MODEL_NAME=qwen3:8b
+EMBEDDING_MODEL_NAME=bge-m3:latest
+MODEL_TEMPERATURE=0
 
 # ===========================================
 # 数据库配置 (Database Configuration)  
@@ -38,7 +38,7 @@ MICROSOFT_TTS_KEY=your_microsoft_tts_key_here
 # ===========================================
 # TTS 配置 (Text-to-Speech Configuration)
 # ===========================================
-TTS_ENDPOINT=
+TTS_ENDPOINT=https://eastus.tts.speech.microsoft.com/cognitiveservices/v1
 TTS_VOICE_NAME=zh-CN-XiaoxiaoNeural
 TTS_OUTPUT_FORMAT=audio-16khz-32kbitrate-mono-mp3
 AUDIO_OUTPUT_DIR=/app/audio